Home / 142,337.70-213,506.55-139,057.20

Finding the Fourth Proportional to 142,337.70, 213,506.55 and 139,057.20

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Solution

The fourth proportional to 142,337.70, 213,506.55 and 139,057.20 is: 208,585.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,337.70 : 213,506.55 = 139,057.20 : x
  2. Step 2: Convert to fraction form
    142,337.70/213,506.55 = 139,057.20/x
  3. Step 3: Cross multiply
    142,337.70x = 213,506.55 × 139,057.20
  4. Step 4: Simplify right side
    142,337.70x = 29,689,623,024.66
  5. Step 5: Solve for x
    x = 29,689,623,024.66/142,337.70
  6. Step 6: Final answer
    x = 208,585.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.